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StageProc2F64Neon.hpp
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/*****************************************************************************
StageProc2F64Neon.hpp
Author: Laurent de Soras, 2016
Ported to double by Dario Mambro, 2020
--- Legal stuff ---
This program is free software. It comes without any warranty, to
the extent permitted by applicable law. You can redistribute it
and/or modify it under the terms of the Do What The Fuck You Want
To Public License, Version 2, as published by Sam Hocevar. See
http://sam.zoy.org/wtfpl/COPYING for more details.
*Tab=3***********************************************************************/
#if ! defined (hiir_StageProc2F64Neon_CODEHEADER_INCLUDED)
#define hiir_StageProc2F64Neon_CODEHEADER_INCLUDED
/*\\\ INCLUDE FILES \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
#include "hiir/StageDataNeonV2F64.h"
namespace hiir
{
/*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
template <>
inline void StageProc2F64Neon <1>::process_sample_pos (const int nbr_coefs, float64x2_t &spl_0, float64x2_t &spl_1, StageDataNeonV2F64 *stage_arr)
{
const int cnt = nbr_coefs + 2 - 1;
const float64x2_t tmp_0 = vmlaq_f64 (
vld1q_f64 (stage_arr [cnt - 2]._mem ),
spl_0 - vld1q_f64 (stage_arr [cnt ]._mem ),
vld1q_f64 (stage_arr [cnt ]._coef)
);
vst1q_f64 (stage_arr [cnt - 2]._mem, spl_0);
vst1q_f64 (stage_arr [cnt - 1]._mem, spl_1);
vst1q_f64 (stage_arr [cnt ]._mem, tmp_0);
spl_0 = tmp_0;
}
template <>
inline void StageProc2F64Neon <0>::process_sample_pos (const int nbr_coefs, float64x2_t &spl_0, float64x2_t &spl_1, StageDataNeonV2F64 *stage_arr)
{
const int cnt = nbr_coefs + 2;
vst1q_f64 (stage_arr [cnt - 2]._mem, spl_0);
vst1q_f64 (stage_arr [cnt - 1]._mem, spl_1);
}
template <int REMAINING>
void StageProc2F64Neon <REMAINING>::process_sample_pos (const int nbr_coefs, float64x2_t &spl_0, float64x2_t &spl_1, StageDataNeonV2F64 *stage_arr)
{
const int cnt = nbr_coefs + 2 - REMAINING;
const float64x2_t tmp_0 = vmlaq_f64 (
vld1q_f64 (stage_arr [cnt - 2]._mem ),
spl_0 - vld1q_f64 (stage_arr [cnt ]._mem ),
vld1q_f64 (stage_arr [cnt ]._coef)
);
const float64x2_t tmp_1 = vmlaq_f64 (
vld1q_f64 (stage_arr [cnt - 1]._mem ),
spl_1 - vld1q_f64 (stage_arr [cnt + 1]._mem ),
vld1q_f64 (stage_arr [cnt + 1]._coef)
);
vst1q_f64 (stage_arr [cnt - 2]._mem, spl_0);
vst1q_f64 (stage_arr [cnt - 1]._mem, spl_1);
spl_0 = tmp_0;
spl_1 = tmp_1;
StageProc2F64Neon <REMAINING - 2>::process_sample_pos (
nbr_coefs,
spl_0,
spl_1,
stage_arr
);
}
template <>
inline void StageProc2F64Neon <1>::process_sample_neg (const int nbr_coefs, float64x2_t &spl_0, float64x2_t &spl_1, StageDataNeonV2F64 *stage_arr)
{
const int cnt = nbr_coefs + 2 - 1;
float64x2_t tmp_0 = spl_0;
tmp_0 += vld1q_f64 (stage_arr [cnt ]._mem );
tmp_0 *= vld1q_f64 (stage_arr [cnt ]._coef);
tmp_0 -= vld1q_f64 (stage_arr [cnt - 2]._mem );
vst1q_f64 (stage_arr [cnt - 2]._mem, spl_0);
vst1q_f64 (stage_arr [cnt - 1]._mem, spl_1);
vst1q_f64 (stage_arr [cnt ]._mem, tmp_0);
spl_0 = tmp_0;
}
template <>
inline void StageProc2F64Neon <0>::process_sample_neg (const int nbr_coefs, float64x2_t &spl_0, float64x2_t &spl_1, StageDataNeonV2F64 *stage_arr)
{
const int cnt = nbr_coefs + 2;
vst1q_f64 (stage_arr [cnt - 2]._mem, spl_0);
vst1q_f64 (stage_arr [cnt - 1]._mem, spl_1);
}
template <int REMAINING>
void StageProc2F64Neon <REMAINING>::process_sample_neg (const int nbr_coefs, float64x2_t &spl_0, float64x2_t &spl_1, StageDataNeonV2F64 *stage_arr)
{
const int cnt = nbr_coefs + 2 - REMAINING;
float64x2_t tmp_0 = spl_0;
tmp_0 += vld1q_f64 (stage_arr [cnt ]._mem );
tmp_0 *= vld1q_f64 (stage_arr [cnt ]._coef);
tmp_0 -= vld1q_f64 (stage_arr [cnt - 2]._mem );
float64x2_t tmp_1 = spl_1;
tmp_1 += vld1q_f64 (stage_arr [cnt + 1]._mem );
tmp_1 *= vld1q_f64 (stage_arr [cnt + 1]._coef);
tmp_1 -= vld1q_f64 (stage_arr [cnt - 1]._mem );
vst1q_f64 (stage_arr [cnt - 2]._mem, spl_0);
vst1q_f64 (stage_arr [cnt - 1]._mem, spl_1);
spl_0 = tmp_0;
spl_1 = tmp_1;
StageProc2F64Neon <REMAINING - 2>::process_sample_neg (
nbr_coefs,
spl_0,
spl_1,
stage_arr
);
}
/*\\\ PROTECTED \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
/*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/
} // namespace hiir
#endif // hiir_StageProc2F64Neon_CODEHEADER_INCLUDED
/*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/